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Greystone Energy Systems

Greystone Energy Systems Inc. manufactures HVAC sensors and transducers with a wide range of products related to temperature, humidity, pressure, current, air quality, and hazardous gases.

Fire Devices

  1. Accessories - Fire

  2. Smoke Detectors

Flow

  1. Accessories - Flow

  2. Air Velocity Transmitters

  3. Water Flow Switches

Gas Detectors

  1. Accessories - Gas

  2. Air Quality Sensors

  3. CO2 Transmitters

  4. Gas Transmitters (Chlorine, Combustibles, etc.)

  5. Gas Transmitters (CO)

  6. Particulate Sensors

Gauges & Thermometers

  1. Pressure Gauges

Humidity / Condensation

  1. Accessories - Humidity

  2. Combination Humidity/ Temp Duct

  3. Combination Humidity/ Temp Outside Air

  4. Combination Humidity/ Temp Room

  5. Dew Point Sensors

  6. Duct Humidity Sensors

  7. Outside Air Humidity Sensors

  8. Room Humidity Sensors

Interface Devices / Signal Conversion

  1. Accessories - Interface Devices

  2. Analog To Analog

  3. Analog To Pneumatic

  4. Analog To Relay

  5. Analog To Resistance

Leak Detection

  1. Moisture Sensors

Power Meters/Current Switches/Current Sensors

  1. Current Sensors

  2. Current Switches

Power Supplies

  1. Accessories - Transformers

Pressure

  1. Accessories - Pressure

  2. Differential Pressure Switches

  3. Differential Pressure Transmitters

  4. Gauge Pressure Switches

  5. Gauge Pressure Transmitters

  6. Pitot Tubes & Pressure Probes

  7. Pressure Gauges

  8. Pressure Monitors

Temperature Sensors

  1. Accessories - Temperature

  2. Duct Averaging Sensors

  3. Duct Sensors

  4. Freezer and Extreme Temperature Sensors

  5. Immersion Sensors

  6. Outside Air Sensors

  7. Remote Probes

  8. Room Sensors

  9. Strap-On Sensors

  10. Thermowells

  11. Wall Plate Sensors

Thermostats & Controllers

  1. Accessories - Thermostats

  2. Freezestats

  3. Non-Configurable Non-Communicating Thermostats

Transformers

  1. Accessories - Transformers

Wireless

  1. Wireless Sensors & Input Devices